A.5 Drive Derating Data
YASKAWA ELECTRIC SIEP C710616 35D YASKAWA AC Drive E1000 Technical Manual 355
Figure A.4
Figure A.4 Carrier Frequency Derating (CIMR-E4A0139 to 4A0362)
Figure A.5
Figure A.5 Carrier Frequency Derating (CIMR-E4A0930 and 4A1200)
◆ Temperature Derating
To ensure the maximum performance life, the drives output current must be derated like shown in Figure A.6 when the
drive is installed in areas with high ambient temperature or if drives are Side-by-Side mounted in a cabinet. In order to
ensure reliable drive overload protection, the parameters L8-12 and L8-35 must also be set according to the installation
conditions.
■
Parameter Settings
Setting: 0 IP00 Enclosure
Drive operation between -10°C and 50°C allows 100% continuous current without derating.
Setting: 1 Side-by-Side Mounting
Drive operation between -10°C and 30°C allows 100% continuous current without derating. Operation between 30°C
and 50°C requires output current derating.
Setting: 2 IP20/NEMA 1, UL Type 1 Enclosure
Drive operation between -10°C and 40°C allows 100% continuous current without derating. Operation between 40°C
and 50°C requires output current derating.
Setting: 3 External Heatsink Installation, Finless Drive
Drive operation between -10°C and 40°C allows 100% continuous current without derating. Operation between 40°C
and 50°C requires output current derating.
No. Name Description Range Def.
L8-12
Ambient Temperature
Setting
Adjust the drive overload (oL2) protection level when the drive is installed in an environment
that exceeds its ambient temperature rating.
-10 to 50 40°C
L8-35
Installation Method
Selection
0: IP00 Enclosure
1: Side-by-Side Mounting
2: IP20/NEMA 1, UL Type 1 Enclosure
3: Finless Drive or External Heatsink Installation
0 to 3 0
Drive Rated
70% of Drive Rated
2 kHz 5 kHz 10 kHz0
4A0139 to 4A0362
5 kHz
2 kHz
Drive Rated
62.5% of HD
0
4A0930and4A1200
SIEP_C710616_35.book 355 ページ ２０１５年１１月３０日 月曜日 午後２時２分
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